Catalyst free, visible-light promoted photoaddition reactions between C 60 and N- trimethylsilylmethyl-substituted tertiary amines for synthesis of aminomethyl-1,2-dihydrofullerenes
作者:Suk Hyun Lim、Dae Won Cho、Patrick S. Mariano
DOI:10.1016/j.tet.2017.11.064
日期:2018.1
aminomethyl-substituted fullerenes has been developed. The process, involving catalyst free, visible-light irradiation of 10% EtOH-toluene solutions containing fullerene C60 and N-trimethylsilylmethyl-substituted amines by using a 20 W compact fluorescent lamp, leads to formation of aminomethyl-substituted fullerene adducts in a highly efficient manner. The photoaddition reaction takes place via a pathway initiated
已经开发了一种高效,良性的制备氨基甲基取代的富勒烯的方法。该方法涉及使用20 W紧凑型荧光灯对10%的含有富勒烯C 60和N-三甲基甲硅烷基甲基取代的胺的EtOH-甲苯溶液进行无催化剂的可见光辐照,从而导致在高浓度下形成氨基甲基取代的富勒烯加合物。有效的方式。的光加成反应发生经由被C由可见光吸收启动的通路60,接着SET从胺到C的三重激发态60。乙醇促进的生成的最小自由基的甲硅烷基化反应随后生成与C偶联的相应α-氨基自由基60自由基阴离子形成富勒烯加合物的阴离子前体。使用可见光的新方法发生在温和的条件下,不需要使用光催化剂。因此,在这一努力中开发的方法可以拓宽易于制备的官能化富勒烯衍生物的范围。